<template>
  <!-- 需求2: 点击弹窗的空白区域, 隐藏树形部门结构(冒泡) -->
  <el-dialog
    title="新增员工"
    :visible="showDialog"
    top="8vh"
    @close="handleClose"
    @click.native="treeShow = false"
  >
    <!-- 表单 -->
    <el-form ref="formRef" :model="formData" :rules="rules" label-width="120px">
      <el-form-item label="姓名" prop="username">
        <el-input v-model="formData.username" style="width:50%" placeholder="请输入姓名" />
      </el-form-item>
      <el-form-item label="手机" prop="mobile">
        <el-input v-model="formData.mobile" style="width:50%" placeholder="请输入手机号" />
      </el-form-item>
      <el-form-item label="入职时间" prop="timeOfEntry">
        <el-date-picker v-model="formData.timeOfEntry" style="width:50%" placeholder="请选择入职时间" />
      </el-form-item>
      <el-form-item label="聘用形式" prop="formOfEmployment">
        <el-select v-model="formData.formOfEmployment" style="width:50%" placeholder="请选择">
          <el-option
            v-for="item in hireType"
            :key="item.id"
            :label="item.value"
            :value="item.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="工号" prop="workNumber">
        <el-input v-model="formData.workNumber" style="width:50%" placeholder="请输入工号" />
      </el-form-item>
      <el-form-item label="部门" prop="departmentName">
        <!-- 需求1: 点一下 显示; 点一下 隐藏 -->
        <!-- 这里应该换成单向数据绑定, 数据=>视图 -->
        <el-input
          :value="formData.departmentName"
          style="width:50%"
          placeholder="请选择部门"
          @click.native.stop="handleClick"
        />
        <div v-if="treeShow" class="tree-box">
          <!-- 树形部门 -->
          <el-scrollbar>
            <el-tree
              v-loading="treeLoading"
              :data="treeData"
              :props="{ label: 'name' }"
              @node-click="handleNodeClick"
            />
          </el-scrollbar>
        </div>
      </el-form-item>
      <el-form-item label="转正时间" prop="correctionTime">
        <el-date-picker v-model="formData.correctionTime" style="width:50%" placeholder="请选择转正时间" />
      </el-form-item>
    </el-form>
    <!-- footer插槽 -->
    <template #footer>
      <el-button>取消</el-button>
      <el-button type="primary" @click="handleSubmit">确定</el-button>
    </template>
  </el-dialog>
</template>

<script>
import obj from '@/constant/employees'
import { reqGetDepartments } from '@/api/departments'
import { transListToTreeData } from '@/utils'
import { reqAddEmployee } from '@/api/employees'
// const { hireType } = obj
export default {
  props: {
    showDialog: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      formData: {
        username: '', // 用户名
        mobile: '', // 手机号
        formOfEmployment: '', // 聘用形式
        workNumber: '', // 工号
        departmentName: '', // 部门
        timeOfEntry: '', // 入职时间
        correctionTime: '' // 转正时间
      },
      rules: {
        username: [
          { required: true, message: '用户姓名不能为空', trigger: ['blur', 'change'] },
          { min: 1, max: 4, message: '用户姓名为1-4位', trigger: ['blur', 'change'] }
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: ['blur', 'change'] },
          { pattern: /^1[3-9]\d{9}$/, message: '手机号格式不正确', trigger: ['blur', 'change'] }
        ],
        formOfEmployment: [
          { required: true, message: '聘用形式不能为空', trigger: ['blur', 'change'] }
        ],
        workNumber: [
          { required: true, message: '工号不能为空', trigger: ['blur', 'change'] }
        ],
        departmentName: [
          { required: true, message: '部门不能为空', trigger: ['blur', 'change'] }
        ],
        timeOfEntry: [
          { required: true, message: '请选择入职时间', trigger: ['blur', 'change'] }
        ]
      },
      hireType: obj.hireType,
      treeData: [],
      treeShow: false, // 树形部门的显示隐藏
      treeLoading: false // 记录树形部门的加载效果
    }
  },
  methods: {
    handleClose() {
      // this.showDialog = false
      this.$emit('update:showDialog', false)
      // 重置表单
      this.$refs.formRef.resetFields()
      // 编辑 不会和 添加 共用一个dialog...
    },
    async handleClick() {
      // console.log('click...')
      this.treeShow = !this.treeShow
      if (this.treeShow === false) return

      // 点击显示 才需要发请求...
      this.treeLoading = true
      const { data: { depts }} = await reqGetDepartments()
      // console.log(depts)
      this.treeData = transListToTreeData(depts, '')
      this.treeLoading = false
    },
    handleNodeClick(data) {
      if (data.children) {
        // 表示你有孩子, 此时不应该被选择
        return
      }
      // 将来能被确认选择的一定是叶子节点(没有孩子的节点)
      // console.log('确认选择', data)
      // 1. 拿到部门名 显示在input内
      this.formData.departmentName = data.name
      // 2. 关闭tree
      this.treeShow = false
    },
    handleSubmit() {
      // 整体校验 => 发请求 => 提示用户 => 关闭dialog => 重新渲染
      this.$refs.formRef.validate(async flag => {
        if (!flag) return

        await reqAddEmployee(this.formData)
        this.$message.success('新增用户成功')
        this.handleClose()
        // 通知父组件 更新数据
        // 1.标准的子传父
        this.$emit('refresh')
        // 2. ref 获取子组件(加ref属性  this.$refs.xxx) 调用子组件的方法;
        //        获取父组件(this.$parent) , 调用父组件的方法
        //    注意事项: $parent将来会受到插槽的影响
        // this.$parent.getUserList()
      })
    }
  }
}
</script>

<style lang="scss" scoped>
.tree-box {
  position: absolute;
  width: 50%;
  // min-height: 50px;
  // max-height: 250px;
  height: 250px;
  left: 0;
  top: 45px;
  z-index: 100;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding-right: 5px;
  // overflow: auto;
  background-color: #fff;

  ::v-deep {
    .el-tree-node__content {
      height: auto; // 高度由内容撑开
    }

    .el-scrollbar {
      height: 100%;
    }
    .el-scrollbar__wrap {
      overflow-x: hidden; // 禁用横向滚动
    }
  }
}
</style>

